Remarkable Placement of the Enormous Generator-Stator Units at The Vĩnh Tân Power Station

Sarens successfully places the generator-stator units at the
Vĩnh Tân Power Station involving detailed engineering analysis and
meticulous execution.

September 2016: Vĩnh Tân power station is
a proposed 6,224-Megawatt (MW) coal power plant complex in Bình
Thuận province, Vietnam. The Vĩnh Tân power
station complex is made up of four separate plants. In
December 2013, Electricity of
Vietnam (EVN) signed a construction agreement with
the Mitsubishi Corporation and
Doosan Heavy Industries (a subsidiary of the Doosan Group) to
build the two-unit, 1,200-MW, $1.4 billion Vĩnh Tân-4. Electricity
demand in Vietnam is expected to see a remarkable increase of more
than 10% per annum in the coming years. Since the Southern Vietnam,
the country's largest economic bloc, faces a critical situation in
terms of its ability to adequately supply the increasing demand for
power, this project has become an initiative of national importance
as part of efforts to realize a stable supply of power for
sustainable economic growth.

Sarens was entrusted with the preparations and operations for
installation of two units of generator stator for Vinh Tan 4
Thermal Power Plant Project weighing 350mt. Sarens has performed
similar projects successfully in the past so we were sure of using
our efficient modular gantry system. Moreover Sarens modular
gantry system can be modified to suit the equipment dimensions and
the operating floor elevation, thus making it perfect solution for
the intended operation. This system is a unique solution which
offers best reliability for related operations at a lower cost than
conventional lifting methods.

The Meticulous Rigging

The modular gantry system and the support equipment were ocean
freighted from Malaysia to Vietnam. Since all our equipment can be
containerized they become easy to transport. Once arrived at site,
the Modular gantry system(5 days) and the support structure(7 days)
was assembled parallel with two teams of Sarens crew which took a
total of 10 days for completing the setup. Since the support
structure was required to be built to a height of 16m, it took the
experience of our well trained crew to assemble the structure in
timely and safe manner; the whole system was built to a tolerance
of +/- 5mm accuracy, making the job meticulous. Detailed
engineering analysis was done to ensure stability and safety of the
equipment during operation.

The Precise Lift

The project involved installation of 2 generator-stator units
each of them 6m in height and weighing 350mt. The weight and height
of the generator units posed a challenge and the confined space
added to it. A highly skilled Sarens crew performed the operation
by first lifting the generator unit to a height of 16m to the
operating floor level and skid it to the foundation 40m from the
lifting location. The operation team used the Modular gantry
support structure ( 11m x 8.5m x 16m ); 600mt- Modular gantry
system (8m x 6.5m x 6m) with 4 strand jacks -588mt cap for lifting
along with the skidding system with 8 push pull units (20mt
capacity).

The operation was done without any down time as the equipment
was at the peak of its performance, credit to the regular
maintenance and checks done. We had a satisfactory client at the
end of installation of both units of the generator, which is a
justification of overall efforts of manpower and equipment
and completion of the project in a safe and timely manner as
per the planned schedule.

Our Project Manager, Vipin Kumar.M.S was quoted saying, "The
success of the project was a result of detailed planning &
engineering along with a great team effort to complete the project
in safe and sound manner, our experienced project team & their
professional approach had made a complex lifting look simple &
elegant, the feeling of pride once a job well executed and congrats
from happy client is what it keeps the entire team motivated and
look forward to the next big thing."